Humanity Is Lost, My Brother Is Looking for Home, I Am Looking for My Brother

Ye Ning was born on a planet where the ecosystem was about to collapse. The people on it called it Earth. People built a huge "ship" and left their home planet. However, they encountered a cosmic storm that caused people to be far away from the home planet, so they began to search for the home planet... Please read the main text for incompetence. It is my first time writing. The writing may not be very good. Please forgive me because I still have to go to school and the update time is uncertain. Please forgive me. Thank you.